- k
- k block
- k diagonal
- k limit
- k point
- k-index
- k-ration
- k-space
- kHz
- kaaba
- kaama
- kabbalah
- kabob
- kabuki
- kabyle
- kaddish
- kadenacy effect
- kadi
- kaff
- kaffeeklatsch
- kaffir
- kaffiyeh
- kafir
- kafiri
- kafkaesque
- kaftan
- kago
- kahawai
- kai
- kaiak
- kail
- kailyard
- kaingin
- kainite
- kainophobia
- kainostype rock
- kaiser
- kaiser roll
- kaiserdom
- kaiserin
- kaiserism
- kaka
- kakapo
- kakemono
- kaki
- kakosmia
- kala-azar
- kale
- kaleidoscope
- kaleidoscope packaging
- kaleidoscopic
- kaleidoscopic packaging
- kaleidoscopical
- kaleidoscopically
- kalemia
- kalends
- kaleyard
- kalf
- kali
- kaliak
- kaligenous
- kalinite
- kaliopenia
- kaliph
- kaliphate
- kalium
- kalium cell
- kaliuresis
- kallidin
- kallikrein
- kallitron oscillator
- kalmuck
- kalmyk
- kalnotype rock
- kalong
- kalpa
- kamikaze
- kamikaze pricing
- kampometer
- kampong
- kampuchean
- kampylite
- kana
- kanaka
- kanamycin
- kanarese
- kanban system
- kangaroo
- kangaroo court
- kangaroo rat
- kangaroo ship
- kanji
- kanji code
- kanji support
- kannada
- kantian
- kantianism
- kaoliang
- kaolin
- kaolin clay